RBP: 00007f4c093a5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4c093a5fac R13: 0000000000000000 R14: 00007ffda277bf30 R15: 00007ffda277c018 watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.7.3364:15447] Modules linked in: irq event stamp: 1434720 hardirqs last enabled at (1434719): [] irqentry_exit+0x3b/0x90 kernel/entry/common.c:357 hardirqs last disabled at (1434720): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (1434718): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (1434718): [] handle_softirqs+0x5bb/0x8f0 kernel/softirq.c:589 softirqs last disabled at (1434685): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last disabled at (1434685): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last disabled at (1434685): [] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 CPU: 1 UID: 0 PID: 15447 Comm: syz.7.3364 Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x4cb/0x12c0 kernel/smp.c:885 Code: 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 fc 4c 89 fd 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 6c 05 0c 00 f3 90 41 0f b6 04 24 <40> 38 c5 7c 08 84 c0 0f 85 e8 0b 00 00 8b 43 08 31 ff 83 e0 01 41 RSP: 0018:ffffc9000f62f820 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b86468c0 RCX: ffffffff81adcdfa RDX: ffff88801cb23c00 RSI: ffffffff81adcdd4 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffed10170c8d19 R13: 0000000000000001 R14: ffff8880b873ffc0 R15: ffff8880b86468c8 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556f2394a8 CR3: 0000000021728000 CR4: 0000000000350ef0 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1052 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline] flush_tlb_multi arch/x86/mm/tlb.c:966 [inline] flush_tlb_mm_range+0x271/0x4a0 arch/x86/mm/tlb.c:1054 tlb_flush arch/x86/include/asm/tlb.h:20 [inline] tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:481 [inline] tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:471 [inline] tlb_flush_mmu mm/mmu_gather.c:395 [inline] tlb_finish_mmu+0x3c9/0x7b0 mm/mmu_gather.c:488 exit_mmap+0x40e/0xba0 mm/mmap.c:1297 __mmput+0x12a/0x410 kernel/fork.c:1356 mmput+0x62/0x70 kernel/fork.c:1378 exit_mm kernel/exit.c:570 [inline] do_exit+0x9ba/0x2d70 kernel/exit.c:925 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 get_signal+0x24ed/0x26c0 kernel/signal.c:3036 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4c0918cde9 Code: Unable to access opcode bytes at 0x7f4c0918cdbf. RSP: 002b:00007f4c09f190e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f4c093a5fa8 RCX: 00007f4c0918cde9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4c093a5fa8 RBP: 00007f4c093a5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4c093a5fac R13: 0000000000000000 R14: 00007ffda277bf30 R15: 00007ffda277c018 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 15449 Comm: syz.2.3365 Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:match_held_lock+0xa/0xc0 kernel/locking/lockdep.c:5300 Code: 0f 0b 90 90 e9 58 ff ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 53 48 39 77 10 48 89 fb 74 55 <66> 83 7f 22 1f 76 65 48 8b 46 08 48 89 f7 48 85 c0 74 4d 8b 15 ad RSP: 0018:ffffc90000007d30 EFLAGS: 00000002 RAX: 0000000000000005 RBX: ffff88802abea918 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffff8880286f1300 RDI: ffff88802abea918 RBP: ffff8880286f1300 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: ffff88802abe9e00 R13: ffff88802abea8f0 R14: 00000000ffffffff R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c248763 CR3: 000000005cc06000 CR4: 0000000000350ef0 Call Trace: __lock_is_held kernel/locking/lockdep.c:5592 [inline] lock_is_held_type+0xb0/0x150 kernel/locking/lockdep.c:5923 lock_is_held include/linux/lockdep.h:249 [inline] advance_sched+0x707/0xc60 net/sched/sch_taprio.c:929 __run_hrtimer kernel/time/hrtimer.c:1801 [inline] __hrtimer_run_queues+0x20d/0xae0 kernel/time/hrtimer.c:1865 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1927 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x112/0x400 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:folio_test_head include/linux/page-flags.h:829 [inline] RIP: 0010:folio_test_large include/linux/page-flags.h:850 [inline] RIP: 0010:__folio_remove_rmap mm/rmap.c:1546 [inline] RIP: 0010:folio_remove_rmap_ptes+0x3c/0x3c0 mm/rmap.c:1620 Code: 55 89 d5 53 48 89 f3 e8 82 1c b0 ff 31 c9 89 ea 48 89 de 4c 89 ef e8 23 6d ff ff 31 f6 4c 89 ef e8 89 47 ff ff be 08 00 00 00 <49> 89 c4 48 89 c7 e8 49 61 12 00 4c 89 e2 48 b8 00 00 00 00 00 fc RSP: 0018:ffffc9000f61f810 EFLAGS: 00000256 RAX: ffffea0001848dc0 RBX: ffffea0001848dc0 RCX: ffffffff8208feb2 RDX: ffff88802abe9e00 RSI: 0000000000000008 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000000 R13: ffffea0001848dc0 R14: ffff88802ecb44d8 R15: dffffc0000000000 zap_present_folio_ptes mm/memory.c:1535 [inline] zap_present_ptes mm/memory.c:1596 [inline] do_zap_pte_range mm/memory.c:1698 [inline] zap_pte_range mm/memory.c:1740 [inline] zap_pmd_range mm/memory.c:1823 [inline] zap_pud_range mm/memory.c:1852 [inline] zap_p4d_range mm/memory.c:1873 [inline] unmap_page_range+0x1b1d/0x43a0 mm/memory.c:1894 unmap_single_vma+0x194/0x2b0 mm/memory.c:1940 unmap_vmas+0x22f/0x490 mm/memory.c:1984 exit_mmap+0x1c1/0xba0 mm/mmap.c:1284 __mmput+0x12a/0x410 kernel/fork.c:1356 mmput+0x62/0x70 kernel/fork.c:1378 exit_mm kernel/exit.c:570 [inline] do_exit+0x9ba/0x2d70 kernel/exit.c:925 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 __do_sys_exit_group kernel/exit.c:1098 [inline] __se_sys_exit_group kernel/exit.c:1096 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096 x64_sys_call+0x151f/0x1720 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5ec258cde9 Code: Unable to access opcode bytes at 0x7f5ec258cdbf. RSP: 002b:00007fff6b7b6488 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5ec258cde9 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fff6b7b64ec R08: 000000056b7b657f R09: 00000000000927c0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000274 R13: 00000000000927c0 R14: 000000000008f5ba R15: 00007fff6b7b6540